113 lines · plain
1; RUN: llc -dwarf-version=4 -generate-type-units \2; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \3; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-44 5; RUN: llc -split-dwarf-file=foo.dwo -split-dwarf-output=%t.dwo \6; RUN: -dwarf-version=4 -generate-type-units \7; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \8; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-49; RUN: llvm-dwarfdump -v %t.dwo | FileCheck %s --check-prefix=DWO-410 11; RUN: llc -dwarf-version=5 -generate-type-units \12; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \13; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-514 15; RUN: llc -split-dwarf-file=foo.dwo \16; RUN: -dwarf-version=5 -generate-type-units \17; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \18; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-519 20; Looking for DWARF headers to be generated correctly.21; There are 8 variants with 5 formats: v4 CU, v4 TU, v5 normal/partial CU,22; v5 skeleton/split CU, v5 normal/split TU. Some v5 variants differ only23; in the unit_type code, and the skeleton/split CU differs from normal/partial24; by having one extra field (dwo_id).25; (v2 thru v4 CUs are all the same, and TUs were invented in v4,26; so we don't bother checking older versions.)27 28; Test case built from:29;struct S {30; int s1;31;};32;33;S s;34 35; Verify the v4 non-split headers.36; Note that we check the exact offset of the DIEs because that tells us37; the length of the header.38;39; SINGLE-4: .debug_info contents:40; SINGLE-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset41; SINGLE-4: 0x0000000b: DW_TAG_compile_unit42;43; SINGLE-4: .debug_types contents:44; SINGLE-4: 0x00000000: Type Unit: {{.*}} version = 0x0004, abbr_offset45; SINGLE-4: 0x00000017: DW_TAG_type_unit46 47; Verify the v4 split headers.48;49; O-4: .debug_info contents:50; O-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset51; O-4: 0x0000000b: DW_TAG_compile_unit52;53; DWO-4: .debug_info.dwo contents:54; DWO-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset55; DWO-4: 0x0000000b: DW_TAG_compile_unit56;57; DWO-4: .debug_types.dwo contents:58; DWO-4: 0x00000000: Type Unit: {{.*}} version = 0x0004, abbr_offset59; DWO-4: 0x00000017: DW_TAG_type_unit60 61; Verify the v5 non-split headers. Type units come first.62; All .debug_info sections are reported in one go, but the offset resets for63; each new section.64;65; SINGLE-5: .debug_info contents:66; SINGLE-5: 0x00000000: Type Unit: {{.*}} version = 0x0005, unit_type = DW_UT_type, abbr_offset67; SINGLE-5: 0x00000018: DW_TAG_type_unit68; SINGLE-5-NOT: contents:69; SINGLE-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_compile, abbr_offset70; SINGLE-5: 0x0000000c: DW_TAG_compile_unit71 72; Verify the v5 split headers.73;74; O-5: .debug_info contents:75; O-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_skeleton, abbr_offset76; O-5-SAME: DWO_id = [[HASH:0x[0-9a-f]*]]77; O-5: 0x00000014: DW_TAG_skeleton_unit78;79; O-5: .debug_info.dwo contents:80; O-5: 0x00000000: Type Unit: {{.*}} version = 0x0005, unit_type = DW_UT_split_type, abbr_offset81; O-5: 0x00000018: DW_TAG_type_unit82; O-5: 0x00000035: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_split_compile, abbr_offset83; O-5-SAME: DWO_id = [[HASH]]84; O-5: 0x00000049: DW_TAG_compile_unit85 86 87; ModuleID = 't.cpp'88source_filename = "t.cpp"89target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"90target triple = "x86_64-unknown-linux-gnu"91 92%struct.S = type { i32 }93 94@s = global %struct.S zeroinitializer, align 4, !dbg !095 96!llvm.dbg.cu = !{!2}97!llvm.module.flags = !{!10, !11}98!llvm.ident = !{!12}99 100!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())101!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true)102!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 5.0.0 (trunk 295942)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)103!3 = !DIFile(filename: "t.cpp", directory: "/home/probinson/projects/scratch")104!4 = !{}105!5 = !{!0}106!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, elements: !7, identifier: "_ZTS1S")107!7 = !{!8}108!8 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !6, file: !3, line: 2, baseType: !9, size: 32)109!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)110!10 = !{i32 2, !"Dwarf Version", i32 4}111!11 = !{i32 2, !"Debug Info Version", i32 3}112!12 = !{!"clang version 5.0.0 (trunk 295942)"}113